Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
196 words
A valve, comprising: a valve housing comprising two valve housing halves, each of said valve housing halves being comprised of a connection piece and a flange section, said flange section being constructed from stamped sheet material and provided with an annular area forming flanges, said flange sections of each of said housing halves being fastened together by detachable fasteners, each of said sheet material flange sections having a connection area surrounding a valve opening which is welded to one of said connection pieces forming one of said housing halves; each sheet material flange section being provided with at least one semi-circular recess to form a shaft guide recess for a valve shaft, located in the separation plane between the flange sections, that runs transversely to the valve opening, said valve shaft being provided with a valve flap that swivels with the valve shaft; and an integral valve sealing ring penetrated by the valve shaft for sealing off the valve shaft and forming a valve seat for said valve flap, said valve sealing ring being mounted in an undercut recess of the valve housing that encircles the valve opening and is partially retained by said flange sections.
Claim 2
Dependent Claim
196 words
A valve, comprising: a valve housing comprising two valve housing halves, each of said valve housing halves being comprised of a connection piece and a flange section, said flange section being constructed from stamped sheet material and provided with an annular area forming flanges, said flange sections of each of said housing halves being fastened together by detachable fasteners, each of said sheet material flange sections having a connection area surrounding a valve opening which is welded to one of said connection pieces forming one of said housing halves; each sheet material flange section being provided with at least one semi-circular recess to form a shaft guide recess for a valve shaft, located in the separation plane between the flange sections, that runs transversely to the valve opening, said valve shaft being provided with a valve flap that swivels with the valve shaft; and an integral valve sealing ring penetrated by the valve shaft for sealing off the valve shaft and forming a valve seat for said valve flap, said valve sealing ring being mounted in an undercut recess of the valve housing that encircles the valve opening and is partially retained by said flange sections.
Claim 3
Dependent Claim
25 words
A valve in accordance with claim 1 wherein said fasteners for fastening together the flange sections of each of said housing halves are threaded bolts.
Claim 4
Dependent Claim
38 words
A valve in accordance with claim 1 wherein one half of each of the undercut recesses (27) is made as a stamping formed between the annular area (21) and the connection area (28) of each flange section (20).
Claim 5
Dependent Claim
34 words
A valve in accordance with claim 1 wherein the connection area of the flange section is placed over a portion of the connection piece and welded on the outside periphery of the connection piece.
Claim 6
Dependent Claim
37 words
A valve in accordance with claim 4 wherein the portion of the connection piece over which the connection area of the flange section is placed is designed as a thin walled pipe projection of the connection piece.
Claim 7
Dependent Claim
23 words
A valve in accordance with claim 5 wherein the pipe projection covers the weld seam with respect to the inside of the valve.
Claim 8
Dependent Claim
34 words
A valve in accordance with claim 4 wherein the end of said pipe projection projects into the area of the undercut recess and forms an edge which constricts the recess toward the valve opening.
Claim 9
Dependent Claim
44 words
A valve in accordance with claim 7 wherein the valve sealing ring is provided with ribs on its flat lateral surfaces which come to rest against corresponding lateral grooves within the walls of the undercut recess between said flange section and said pipe projection.